Answer: The value to add to the set is 52
=======================================================
For a moment, ignore the extra value we'll add in later.
The given set of values add to -34.
Let x be the extra value we add in. It adds to the -34 to get -34+x, then we divide by 6 because the set {-4,-10,-16,8,-12,x} has 6 items.
So we get the mean (-34+x)/6
Set this equal to the mean we want (3) and solve for x
(-34+x)/6 = 3
-34+x = 6*3
-34+x = 18
x = 18+34
x = 52
The set {-4,-10,-16,8,-12,x} updates to {-4,-10,-16,8,-12,52} and this set has a mean of 3.
find the absolute maximum and the absolute minimum of the given function on the given interval f(x)=xe^x/2 on [-3,1]
Answer:
View the graph for a visual
Step-by-step explanation:
Answer:
Step-by-step explanation:
[tex]f(x)=xe^{\frac{x}{2} } \\f'(x)=x*\frac{1}{2} e^{\frac{x}{2} } +e^{\frac{x}{2} } =e^{\frac{x}{2} } (\frac{x}{2} +1)\\[/tex]
f'(x)=0, gives x=-2
we find f(x) at x=-3,-2,1
f(-3)=-3e^(-3/2)≈-0.67
f(-2)=-2e^(-2/2)=-2e^{-1}=-2/e≈-0.74
f(1)=1 e^(1/2)=√e≈1.65
What is the slope of the line?
-3
Step-by-step explanation:
it is -3 because the line touches -3 on the y-intercept
A researcher wants to survey 2000 Americans for an obesity study. Match the strategies to their corresponding sampling techniques
The researcher posts the survey on the Internet the survey question and waits until 2000 people have responded.
The researcher gets the complete list from the Census Bureau and surveys every 1500th person on the list.
The researcher gets the complete list from the Census Bureau and uses a computer to randomly selc 2000 people.
The researeher makes sure that the proportion of respondents from each state matches the propontion of each state's population to the US population
The researcher picks 20 different small groups:a church group a Democrat club a student club etc. each containing 100 people.
Then the researcher makes sure that everyone from each group answers the survey question.
a. Stratified Sampling
b. Systematic Sampling
c. Simple Random Sampling
d. Cluster Sampling
e. Convenience Sampling
Hint: Sampling Methods License Points possible: 1 This is attempt 1 of 1.
Answer:
a. The researcher makes sure that the proportion of respondents from each state matches the proportion of each state's population to the US population.
b. The researcher gets the complete list from the Census Bureau and surveys every 1500th person on the list.
c. The researcher gets the complete list from the Census Bureau and uses a computer to randomly select 2000 people.
d. The researcher picks 20 different small groups:a church group a Democrat club a student club etc. each containing 100 people. Then the researcher makes sure that everyone from each group answers the survey question.
e. The researcher posts the survey on the Internet the survey question and waits until 2000 people have responded.
Step-by-step explanation:
Samples may be classified as:
Convenient: Sample drawn from a conveniently available pool.
Random: Basically, put all the options into a hat and drawn some of them.
Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.
Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.
The researcher posts the survey on the Internet the survey question and waits until 2000 people have responded.
First 2000, so convenience.
The researcher gets the complete list from the Census Bureau and surveys every 1500th person on the list.
Every kth element, k = 1500, so systematic.
The researcher gets the complete list from the Census Bureau and uses a computer to randomly select 2000 people.
Randomly selects 2000 people, so random sampling.
The researcher makes sure that the proportion of respondents from each state matches the proportion of each state's population to the US population.
Divides the population into groups(by state), and a few members of each group are surveyed, so stratified.
The researcher picks 20 different small groups:a church group a Democrat club a student club etc. each containing 100 people. Then the researcher makes sure that everyone from each group answers the survey question.
Each element of the cluster is surveyed, so cluster sampling.
1 What is the solution to the inequality
12x < 264?
A x > 22
B x < 22
C x < 252
D x > 252
Answer:
x < 22
Step-by-step explanation:
12x < 264
Divide each side by 12
12x/12 < 264/12
x < 22
Given that,
12x < 264
Not we can divide each side by 12,
→ 12x/12 < 264/12
→ x < 22
So, option (B) is correct answer.
what is x+54 +3x+28+90 I really need help
Answer:
4x+172
Step-by-step explanation:
x+54 +3x+28+90
Combine like terms
x+3x + 54+28+90
4x + 172
Answer:
[tex] \large \sf \fbox{4x - 172}[/tex]
Step-by-step explanation:
➛ x + 54 + 3 x + 28 + 90
combine like terms
➛ x + 3 x + 54 + 28 + 90
➛ 4 x + 172
please, this is the last time I'm asking, just help me with the Volume.
Answer: 4374
Step-by-step explanation:
Avery invested $3,800 in an account paying an interest rate of 5\tfrac{1}{2}5
2
1
% compounded monthly. Serenity invested $3,800 in an account paying an interest rate of 6\tfrac{1}{8}6
8
1
% compounded continuously. After 17 years, how much more money would Serenity have in her account than Avery, to the nearest dollar?
After 17 years, Serenity has $778 more than Avery
The formula for calculating the compound amount is expressed according to the formula;
[tex]A=P(1+\frac{r}{n} )^{nt}\\[/tex]
For Avery;
P = $3,800
rate = 5 1/2 % = 0.055
time = 17 years
n = 12 (monthly compounding)
Substitute into the formula to have:
[tex]A=3800(1+\frac{0.055}{12} )^{12(17)}\\A=3800(1+0.00458)^{204}\\A=3800(1.00458)^{204}\\A=3800(2.5401)\\A = \$9,652.22[/tex]
Hence the amount that will be in Avery's account after 17years is $9,652
For Serenity;
P = $3,800
rate = 6 1/8 % = 0.06125
time = 17 years
n = 1 (continuous compounding)
Substitute into the formula to have:
[tex]A=3800(1+\frac{0.06125}{1} )^{1(17)}\\A=3800(1+0.06125)^{17}\\A=3800(1.06125)^{17}\\A=3800(2.7473)\\A = \$10,439.62[/tex]
Hence the amount that will be in Serenity's account after 17years is $10,430.
Amount Serenity have more than Avery = $10,430 - $9652 = $778
Learn more on compound amount here: https://brainly.com/question/18442810
pls help me with this q
some banks charge a fee on savings account that are left inactive for an extended period of time. the equation y=5000(0.98)^x represents the value, u of one account that was left inactive for a period of x years. what is the y-intercept of this equation, and what does it represent?
a. 0.98 the percent of money in the account initially?
b. 0.98, the percent of money in the account after x years
c. 5000, the account of money in the account initially
d. 5000, the amount of money in the account after x years
Answer:
it gotta be d cause i went with my instinct.
Step-by-step explanation:
solve write it out.
Free Branliest Quick and Correct!
1x1=
9x6 =
18×6=
54×6=
10x2=
Answer:
1x1=1
9x6 =54
18×6=108
54×6=324
10x2=20
Step-by-step explanation:
Find the distance between the two points in simplest radical form HELP
Given:
The two points on the graph.
To find:
The distance between the two points in simplest radical form.
Solution:
From the given graph, it is clear that the two points on the graph are (-9,3) and (-3,-2).
Distance formula:
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Using the distance formula, the distance between two points (-9,3) and (-3,-2) is:
[tex]d=\sqrt{(-3-(-9))^2+(-2-3)^2}[/tex]
[tex]d=\sqrt{(-3+9)^2+(-5)^2}[/tex]
[tex]d=\sqrt{(6)^2+(-5)^2}[/tex]
On further simplification, we get
[tex]d=\sqrt{36+25}[/tex]
[tex]d=\sqrt{61}[/tex]
Therefore, the distance between the given points is [tex]\sqrt{61}[/tex] units.
Help pleaseeee!!!!!!!!! I’ll mark brainliest!!!!!
Answer:
i believe it is D side angle side
Step-by-step explanation:
Is kissing and making out the same thing or are they 2 different things?
Answer:
different
Step-by-step explanation: very different
How many solutions exist for the given equation?
1/2(x + 12) = 4x -1
•
zero
one
two
infinitely many
Answer:
one
[tex] \frac{1}{2} (x + 12) = 4x - 1 \\ x + 12 = 8x - 2 \\ 7x = 14 \\ x = 2[/tex]
Pls help 12 points pls
Answer:
3/4
Step-by-step explanation:
Hi there!
There are 6 sections that are odd-numbered and there are 8 sections in total. Therefore, the probability that the pointer will land on an odd-numbered section is 6/8, or 3/4 when simplified.
I hope this helps!
ind the median for the set of numbers 5,5,7,9,11,12,18,18
Answer:
10
Step-by-step explanation:
Answer: The median is 10
Step-by-step explanation:
Identify a transformation of the function f(x)=|x| by observing the equation of the function g(x)=|x|+4.
Answer:
its 9 plus 9 and equals 19.0
SOMEONE HELP ME PLEASE
Answer:
x should be 9.
Step-by-step explanation:
y was multiplied by 3 (7 x 3 = 21), so multiply the value of x by 3 as well to get 9.
35 is 40% of what
number?
Answer:
35 is 40% of 87.5
Step-by-step explanation:
[tex]\frac{40}{100}=\frac{35}{x}[/tex]
Cross multiply
[tex]40x=3500[/tex]
Divide both sides by 40
[tex]x=87.5[/tex]
Hope this helps
The slope of the line below is -3. Which of the following is the point-slope
form of the line?
-5
5
• (2,-2)
Given:
The slope of the line is -3.
The line passes through the point (2,-2).
To find:
The point-slope form of the line.
Solution:
Point slope form: If a line passes through the point [tex](x_1,y_1)[/tex] with slope m, then the point-slope form of the line is:
[tex]y-y_1=m(x-x_1)[/tex]
The slope of the line is -3 and it passes through the point (2,-2). So, the point-slope form of the line is:
[tex]y-(-2)=-3(x-2)[/tex]
[tex]y+2=-3(x-2)[/tex]
Therefore, the required point slope form of the given line is [tex]y+2=-3(x-2)[/tex].
The dot plot below shows 6 data points with a mean of 16. 12 13 14 15 16 20 What is the absolute deviation at 19? 03 04 7 8
Answer:
The absolute deviation at 19 is 3.
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
|19-16|=3
subtract mean from expected value
Determine whether the sequence converges or diverges. If it converges, give the limit. 1/462, 1/42, 11/42, 121/42
Answer:
Diverges
Step-by-step explanation:
It will diverge due to my calculations
What is the true meaning of absolute value?
Answer:
Change the value from negative to positive
Or
Change the value from positive to positive
Step-by-step explanation:
It is very simple
Any number's absolute value should be positive
Let's say absolute value of 3 - >answer is 3
But absolute value of - 3 - > is also 3
Hope you understood it.
Answer:
In math students think that the function just removes negative signs, and actually that is basically what happens...
BUT !!! the definition that you want is that absolute value is a measure of how far (distance) you are from ZERO.... and note that distances are not negative...
If you run out of gas one mile in front of behind a gas station, you have to travel "one mile" you don't walk "negative one mile"...
forward one mile or backward one mile are both "one mile" just in different directions
Step-by-step explanation:
will mark as brainliest!
y=acos(b(x-c))+d
give an explanation for how each letter a, b, c and d are shown in the graph compared to y=cosx
please helpppp!!! it’s timed!!!! thank u for helping!!!!!
Answer:
ADMC
Step-by-step explanation:
The secant of a circle is a line that cuts the cuts two points of the circumference with one end point external to the circle;
Fro the given diagram, the two lines that cuts the circumference of the circle at two points are AEB and ADMC
Hence the one that contains diameter with point M is line ADMC
What is the total surface area of a rectangular prism box that measures 5 feet by 1 foot by 1 foot
Answer:
22 ft²
Step-by-step explanation:
SA = 2(5 x 1) + 2 ( 5 x 1 ) + 2 (1x1)
SA = 20 + 2 = 22
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
REFERENCE: LESSON 8 TO 12.
1.
Simplify the ratios 52 : 39
(1 mark)
Answer:
2.
Simplify 4/16:23
(1 mark)
Answer:
(1 mark)
3.
Express the ratio 8 : 56 in the form 1:n
Answer:
(1 mark)
4.
Solve for the unknown in the given proportion.
Answer:
(1 mark)
5.
Express the ratio 40 cm: 5 m in the form m:n.
Answer:
Answer:
Step-by-step explanation:
1. 52:39
Divide both sides by 13:
= 4:3.
2. 4/16 : 23
= 1/4 : 23
= 1 :92.
3. 8:56
= 1:7.
4. ?
5. 40 cm 5 m
= 40 : 500
= 4:50
= 2:25.
will mark as brainliest:
give the equation of the given graph
Answer:
Step-by-step explanation:
y = A sin(B(x + C)) + D
amplitude is A = (5 - -1)/2 = 3
period is 2π/B = 4 ==> B = .5π
phase shift is C (positive is to the left) = 0
vertical shift is D = 2
-------------------------
y = 3sin(.5πx) + 2
Answer:
Step-by-step explanation:
In the image you can see the amplitude is 6/2=3
also you can see that the curve is shifted upwards 2 units
regarding to the frequency of the function, we can notice the it has a period of 4
[tex]w=\frac{2\pi}{\Gamma}=\frac{2\pi}{4}=\frac{\pi}{2}[/tex]
finally, the equation will be:
[tex]f(x)=2+3sin(\frac{\pi}{2}x)[/tex]
See the full equation on the attached image
Will mark Brainlest help me to multiply it
